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Efficacy of two dichlorvos formulations against larval and adult Hyostrongylus rubidus in swine. |
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| Authors: | T B Stewart O M Hale O G Marti |
| Abstract: | Coated (V-13) and uncoated (V-22) formulations of dichlorvos were used to treat experimentally established Hyostrongylus rubidus infections of pigs at intervals after exposure to infective larvae. Both dichlorvos formulations were efficacious against the adult stomach worm H rubidus, but showed little or no activity against 5- or 15-day-old worms. Neither formulation was as effective against H rubidus in sows as in barrows and gilts. |
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